:root{color-scheme:light;--ink:#253a33;--muted:#64736a;--paper:#f5f2eb;--line:#dedfd5;--green:#365b48;--light:#ece9d7;--dark:#79947a}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.55 system-ui,sans-serif}main{max-width:1120px;margin:auto;padding:36px 28px}header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:32px}h1{font:500 clamp(30px,4.6vw,48px)/1.15 Georgia,serif;margin:5px 0 10px}p{margin:8px 0;color:var(--muted)}.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-size:11px;font-weight:700;color:var(--green)}h2{font:500 21px/1.25 Georgia,serif;margin:5px 0 12px}.layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:36px}.board-header{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:12px}#replicas{font-size:12px;color:var(--muted)}.board{display:grid;grid-template-columns:repeat(8,1fr);border:8px solid #48624d;border-radius:4px;overflow:hidden;aspect-ratio:1}.square{border:0;border-radius:0;min-width:0;min-height:0;padding:0;aspect-ratio:1;display:flex;align-items:center;justify-content:center;font:clamp(26px,4.8vw,48px)/1 Georgia,'Times New Roman',serif;background:var(--light);color:#172b23;cursor:pointer;position:relative}.square.dark{background:var(--dark)}.square.white{color:#fffdf0;text-shadow:0 1px 1px #18372b,1px 0 #18372b,-1px 0 #18372b,0 -1px #18372b}.square.selected{box-shadow:inset 0 0 0 4px #d1a435;background:#c9bd75}.square.last{box-shadow:inset 0 0 0 3px #ead587}.square:focus-visible{outline:3px solid #173fcb;outline-offset:-4px;z-index:1}.files{display:grid;grid-template-columns:repeat(8,1fr);padding:0 8px;text-align:center;color:var(--muted);font:11px monospace;letter-spacing:.05em;margin:7px 0 20px}button,input,select{font:inherit}button{border:1px solid #bcc7ba;background:#fffdf8;color:var(--ink);border-radius:6px;padding:10px 15px;min-height:44px;cursor:pointer}button:hover{background:#e6ecdf}button:disabled{cursor:default;opacity:.5}label{font-size:13px;font-weight:650}label span{font-weight:400;color:var(--muted);margin-left:7px}.move-controls{display:flex;gap:8px;margin-top:7px}.move-controls input{width:95px;min-width:0;font:18px monospace;border:1px solid #bcc7ba;background:white;padding:10px;border-radius:6px}.move-controls select{min-width:0;max-width:100px;background:transparent;border:1px solid #bcc7ba;border-radius:6px;padding:5px}#send{background:var(--green);color:white;border-color:var(--green)}#notice{font-size:13px;min-height:42px}#notice.error{color:#974129}.panel{border-top:1px solid var(--line);padding:19px 0}.panel:first-child{border-top:0;padding-top:0}.panel p{font-size:13px}.section-title{display:flex;align-items:baseline;justify-content:space-between}.section-title span{font-size:12px;color:var(--muted)}#record{list-style:none;margin:0;padding:0;max-height:300px;overflow:auto}#record li{padding:10px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:1fr auto;gap:4px;font-size:13px}#record small{grid-column:1/-1;color:var(--muted);font-size:11px;overflow-wrap:anywhere}.badge{font-size:10px;text-transform:uppercase;font-weight:700;letter-spacing:.04em;color:var(--green)}.badge.rejected,.badge.unauthenticated{color:#974129}.badge.pending{color:#887126}summary{cursor:pointer;font-size:13px;font-weight:650;min-height:30px}pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:10px;background:#eaece3;padding:8px;border-radius:4px}.import{display:block;margin-top:12px}.import input{display:block;max-width:100%;font-size:11px;margin-top:8px}a{color:var(--green);font-size:12px}footer{font-size:12px;color:var(--muted);margin-top:34px;padding-top:16px;border-top:1px solid var(--line)}@media(max-width:720px){main{padding:20px 16px}.layout{grid-template-columns:minmax(0,1fr);gap:18px}header{align-items:start;margin-bottom:22px}header button{font-size:12px;padding:8px 10px;white-space:nowrap}h1{font-size:31px}header p:not(.eyebrow){font-size:13px}.square{font-size:clamp(28px,8vw,48px)}.board-header{font-size:13px}.move-controls{flex-wrap:wrap}.panel:first-child{padding-top:16px;border-top:1px solid var(--line)}}
.opponent-controls{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:5px}.opponent-controls label{display:flex;gap:7px;align-items:center;flex-wrap:wrap}.opponent-controls select{min-height:40px;max-width:100%;padding:7px;border:1px solid #bcc7ba;border-radius:6px;background:#fffdf8;color:var(--ink);font:inherit}#engine-status{font-size:12px;min-height:20px;margin:4px 0 16px}#engine-status.error{color:#974129}
.network{margin-bottom:24px}.clients{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.client-card{background:#f7f4eb;color:#253b32;padding:12px;min-width:0;text-align:left;border:2px solid transparent}.client-card.active{border-color:#267053}.client-card small{display:block;white-space:pre-line;font-size:12px;overflow-wrap:anywhere}.mini-board{display:grid;grid-template-columns:repeat(8,1fr);width:112px;max-width:100%;margin:10px auto}.mini-board span{aspect-ratio:1;text-align:center;background:#eee1c9;font-size:14px;line-height:1}.mini-board .dark{background:#91a58b}.transport-controls{display:flex;gap:16px;flex-wrap:wrap;align-items:center;margin-top:16px}.transport-controls input{width:auto}.packet{display:flex;gap:8px;align-items:center;padding:9px 0;border-top:1px solid #ddd6c9;flex-wrap:wrap}.packet span{flex:1;min-width:180px}.packet button{padding:6px 10px;font-size:12px}.packet.queued{border-left:3px solid #bd8c32;padding-left:8px}.packet.delivered{opacity:.75}.simulation{font-size:12px;color:#626c64}.network .section-title{flex-wrap:wrap;gap:10px}@media(max-width:600px){.clients{gap:4px}.client-card{padding:5px}.client-card small{font-size:10px}.mini-board{width:88px}.mini-board span{font-size:11px}.network{padding:12px}}
/* The board and the next delivery are the two primary surfaces. */
main{max-width:1240px}.layout{grid-template-columns:minmax(0,1.4fr) minmax(310px,1fr);gap:44px}header{padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:28px}.view-title h2{font-size:28px;margin:0}.view-title p{font-size:13px}.view-title .eyebrow{margin-bottom:3px}.clients{margin:18px 0 22px;gap:8px}.client-card{padding:11px 12px;background:#fffdf8;border:1px solid #cbd0c4}.client-card.active{border:2px solid var(--green);padding:10px 11px;background:#eaf0e4}.client-card strong{display:block;font-size:14px}.client-card small{font-size:11px;margin:3px 0}.client-state{font-size:10px;color:var(--muted)}.square:disabled{opacity:1}.square:disabled:hover{background:var(--light)}.square.dark:disabled:hover{background:var(--dark)}.network{padding:22px!important;border:1px solid var(--line)!important;border-radius:12px;background:#fffdf8;margin-bottom:18px}.network h2{font-size:25px;margin-bottom:10px}.transport-controls{display:grid;gap:7px;margin:18px 0 14px}.transport-controls label{font-size:12px;font-weight:500}.transport-controls input{accent-color:var(--green)}#next{width:100%;background:var(--green);color:white}#packets{margin-top:14px}.packet{display:block;padding:12px;margin-top:8px;border:1px solid var(--line);border-radius:7px;background:var(--paper)}.packet.queued{padding-left:12px;border-left:3px solid #bc8c35}.packet span{display:block;font-size:13px;font-weight:650}.packet small{display:block;font-size:11px;color:var(--muted);margin-top:3px}.packet-actions{display:flex;gap:8px;margin-top:10px}.packet-actions button{min-height:36px;padding:5px 12px}.packet-actions button:first-child{background:#e5eddf}.delivery-history{margin-top:16px}.delivery-history summary{font-size:12px;color:var(--muted)}.simulation{margin-top:15px!important;font-size:11px!important}.empty-queue{text-align:center;font-size:12px;padding:12px;color:var(--muted)}.opponent-controls{margin-bottom:5px}#engine-status{margin-bottom:12px}#turn{font-size:14px}#replicas{font-size:11px}.badge.in-flight{color:#887126}@media(max-width:720px){.layout{grid-template-columns:minmax(0,1fr);gap:24px}.clients{gap:5px}.client-card{padding:8px}.client-card.active{padding:7px}.client-card small{font-size:10px}.client-state{font-size:9px}.network{padding:18px!important}.view-title h2{font-size:25px}.board-header{flex-wrap:wrap}}
.square.draggable{cursor:grab;touch-action:none}.square.drag-source{color:transparent;text-shadow:none}.square.drop-target{box-shadow:inset 0 0 0 4px #e5ba48}.drag-piece{position:fixed;transform:translate(-50%,-50%);pointer-events:none;z-index:1000;font:58px/1 Georgia,'Times New Roman',serif;color:#172b23;filter:drop-shadow(0 3px 3px #253a3344)}.drag-piece.white{color:#fffdf0;text-shadow:0 1px 1px #18372b,1px 0 #18372b,-1px 0 #18372b,0 -1px #18372b;}
.history-controls{margin-top:12px;padding:12px 14px;border:1px solid var(--line);border-radius:8px;background:#fffdf8}.history-controls>div{display:flex;justify-content:space-between;align-items:center;gap:10px}.history-controls strong{font-size:13px}.history-controls button{font-size:12px;padding:5px 10px;min-height:34px}.history-controls input{display:block;width:100%;margin:12px 0;accent-color:var(--green)}.history-controls p{font-size:11px;margin:0}
.demo-label{font-size:12px;margin:-12px 0 24px;color:var(--muted)}
.raw-message{grid-column:1/-1;min-width:0;margin-top:8px}.raw-message summary{font-size:11px;font-weight:550;color:var(--green);min-height:28px}.raw-message p{font-size:11px!important;font-weight:400}.raw-message pre{font:11px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;max-height:260px;overflow:auto;background:#edf0e7;color:var(--ink);text-transform:none;letter-spacing:normal}.raw-message .cbcl-envelope{font-size:10px;background:transparent;border:1px solid var(--line)}#record:has(.raw-message[open]){max-height:620px}.layout>*,.packet{min-width:0}
.dialect-panel{min-width:0}.dialect-panel label{font-size:11px}.dialect-panel pre{max-height:360px;overflow:auto;font:11px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere}.dialect-panel #dialect-status{font:10px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;overflow-wrap:anywhere}.dialect-panel summary{font-size:14px}
#dialect-source{background:#f0f1e9;border:1px solid #d7ddce;padding:14px}.cbcl-keyword{color:#6b368b;font-weight:650}.cbcl-field{color:#82511b}.cbcl-identity{color:#985030}.cbcl-string{color:#23633e}.cbcl-number{color:#185f9a;font-weight:650}.cbcl-paren{color:#626e64}.cbcl-hash{color:#405c79}.cbcl-comment{color:#637063;font-style:italic}
.contract-story{font-size:13px;color:var(--green);margin:-12px 0 26px}.dialect-panel #dialect-name{font:10px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;overflow-wrap:anywhere;padding:9px;background:#edf0e7;border-radius:5px}.dialect-name-label{font-weight:650}
.dialect-display-name{font:500 24px/1.2 Georgia,serif;margin:18px 0 8px}